Users on T-Mobile will be happy to know that an OS update is due to land tomorrow that brings along Wi-Fi calling as well as a few other improvements. Not too long ago T-Mobile began rolling out an OS update to Q10 users and now Z10 owners will be able to join in the fun as well.

A notice in T-Mobile's support docs shows the update will be to OS 10.1.0.4780 and available starting September 5th. This is one of the first times we've seen a carrier drop word of an OS before the actual release but we won't complain about it one bit.

We'll be on the lookout for more tomorrow, but if you're using a Z10 on T-Mobile be sure to keep your eyes peeled and report back if you see the update.

When I was in the US a few weeks ago with my unlocked Rogers z10 using my tmo sim, I was prompted to connect to Wifi. Once I did it would notify me to connect to Wifi calling. Can I assume it was available on tmo purchased z10's?

Doing a Google search on this matter I found several internet blog reports with identical context.

As reported, someone on a Crackberry forum (one of us ordinary folk), 'over-heard from' a sales person (aka 'store manager') that BB OS10 phones were to be removed from the store(s) and only available on line.

I've been running leaked 10.1.0.4543 for quite some time - WiFi Calling is in there and works quite well. Not perfect (sometimes it disconnects and I have to disable/enable WiFi to restore it) but about 95% reliable at my home which has very poor cell coverage. So to me it's very useful.

I just updated my z10 to a leaked release. [Newbie to the whole leaked release game, and I love it!] Will it allow me to update elements, like it did when we were on 10.0.x or am I going to have to restore to my prior version?

Thanks for the info. Even though I'm on AT&T, I have a T-Mo SIM so I can get the update. Alas, I'd do the update and jump immediately on a plane for 2 weeks. I don't want to take that chance. Will have to wait until I get back.

I think Wifi calling will compensate for all that. For me it is other way round though, as T-Mobile has the best signal in my home area and office and their speeds are unbeatable by both AT&T and Verizon 4G LTE.

Hopefully the 10.2 release won't be handled like 10.1 and 10.1MR with regards to the US and getting it last, but it likely will. It is obvious that they US carriers are getting builds after the others to test, my guess is because they want to give all the US carriers the candidates at the same time and we have Verizon with the dinosaur CDMA support holding things back. This staggered global launch cycle is ridiculous and needs to be addressed ASAP, even if it means Verizon and Sprint gets builds to test after AT&T and T-Mobile because they have CDMA to support.

I might have to downgrade back to 10.1 tomorrow, just to see if the wifi calling actually works for me now (it hasn't with any of the leaks), then make a tough decision about going back to 10.2, if it does work.

Since switching from AT&T to TMO I've needed to use wifi calling (available on 10.1.0.4543) because coverage leaves a lot to be desired. For the most part it works well. At times voice quality is lower and text messages are delayed when my wifi calling is active.

It's misleading to say that T-Mobile has already begun rolling out the update for Q10's. They erroneously released a small non-update with the wifi calling app, but there has been NO software update for the Q10's on T-Mobile. I am still on 10.1.0.273, and it still says I have the "latest software".

So you're confirming OTA OS downloads don't count against a data plan? If this is true, would you happen to know if the same is true overseas. i.e. will you be charged for data and/or roaming when pulling down the update? Thanks

That's a great question. No clue, but I'd suggest against trying it.. International data usage might be charged because the carrier is charged no matter what. Domestically, carriers just don't want to charge customers for upgrades they deserve.

Does anyone knows when the 10.1 MR will be rolled out for Latinamerica? It was supposed to start on mid august but nothing has come out yet, my phone is factory unlocked so I wouldn't have to wait for my carrier or I still would?

Theres barely any reviews on q10 at tmobile site- I think some of us who has Tmobile q10 should spread the word and write some reviews at Tmobile.com ... It doesn't requare registration- Just leave your good/ bad honest review- spread the word!!!

Just updated and it took about an hour, but I lost Gmail,Yahoo and my work email ; every time I try to update the passwords my device tells me is not connected to the network?!?!?! WTF always something... can anybody help! :-|

my phone has not come back on since i updated at 7am. it is stuck on the blue screen that says its 100%. i took the battery out tried again and nothing its still stuck. wth is going on? anyone else have this issue?

Downloading, again. For some reason my first download was 147MB, and then it stopped at 99% installation, and prompted me that a 844MB update was available, both updates were for the same OS version. (I have only been running the latest T-mo updates)

so I just updated and when it finished and asked me to restart it, I did that and now when it's turning back on it just gets stuck on the blackberry logo screen... I'm freaking out. I've already tried to take the battery out for it too restart again, and the same, it gets stuck there... can't do anything with it, not even the on/off button works... WHAT TO DO?? help please!!!

OK......It's Christmas morning and my phone has been acting strange for some reason. First of all, I noticed that my contacts page isn't loading properly. I'm being asked to add contacts when I know I have at least 80 in my phone book. I can access them through the phone dialing screen itself and even THIS takes some time to load. I also noticed that when I try to access Facebook, it directs me to the account login screen to update my settings and it just loads but won't open. I tried uninstalling FB and reinstalling with the same result. Ultimately I was curious to see if there was some sort of update to the OS and came to find that my phone seems to have been updated to 10.2.179 when before it was 10.1.....whatever. I am currently running the leaked version 10.2.1055 and I'm not sure if the leak is clashing with and update if in fact the update did occur. I'm using a Verizon BB Z10 with T-Mobile service. Has anyone else noticed anything strange like this?

CrackBerry is in no way Affiliated with BlackBerry. We take pride in our unbiased content, however do occasionally receive free products from vendors that we review or discuss. For more info click here.